Henry IV of Germany outside the gates of Canossa Size:XS: 30 x 20cm A repeating altitude azimuth circle

A repeating altitude azimuth circle manufactured by Edward Troughton

'Pray remember us poor children'

View in Covent Garden

showing an interior and exterior view of a butchers shop

Henry IV of Germany outside the gates of Canossa Size:XS: 30 x 20cm A repeating altitude azimuth circleHenry IV of Germany outside the gates of Canossa, Italy, 1077 (1913). Barefoot, clad in a hair shirt, Henry appeared before the gates, begging for admission. Henry IV (1050 1106) was King of Germany from 1056 and Holy Roman Emperor from 1084. In 1077, he performed penance outside the gates of Canossa Castle in order to persuade Pope Gregory VII to reverse his excommunication. The incident occurred during the Investiture Controversy, a conflict between